Meditation improves education, group says: "Advocates say TM can spread success at other schools, and groups promoting it recently have appeared at public schools in New York, California, Minnesota, Pennsylvania, Kentucky and other places.

But critics say Transcendental Meditation in public schools straddles the line between church and state.

'I would call it a stealth religion,' said Barry Markovsky, a University of South Carolina sociologist who researches social networks."